Re: Boot regression on Mackerel with current mainline

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Tuesday, July 03, 2012, Guennadi Liakhovetski wrote:
> Hi Rafael
> 
> On Tue, 3 Jul 2012, Rafael J. Wysocki wrote:
> 
> > Hi,
> > 
> > We seem to have a functional regression on Mackerel with 3.5-rc5 which
> > seems to be related to SDHI.  Namely, the SDHI driver appears to wait forever
> > for the devices to appear and commenting out all of the sdhi devices in the
> > board file works around the problem.
> > 
> > I can investigate some more later today if need be.
> 
> Have you checked the logs? Are you seeing any of these in the kernel log:
> 
> genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq 

I see this only once per boot, but then sh_mobile_sdhi is saying "timeout
waiting for hardware interrupt" pretty much continuously.

> with an IRQ number at the end? If so, then this is a known problem, which 
> I'd hoped would have been long fixed by now:
> 
> https://lkml.org/lkml/2012/6/12/151
> 
> We can nommit a fix for it in mmc, or we can try to re-ping Thomas - if 
> this is indeed the bug, you're getting...

I guess it is, but having reviewed the above e-mail thread I don't think any
fix from Thomas is going to appear.  So, please fix that in MMC, if possible.

Thanks,
Rafael